Cheap Optical Transducers (CHOTs)

用（约200个）适合非专业读者的词描述你的研究计划。该项目将开发一系列新型廉价光学换能器（chot），用于超声波的产生和检测。这些chot有潜力比现有的基于压电的换能器便宜得多（bbb30个数量级），并且与现有的接触式（压电）或非接触式（激光超声和EMATs）换能器系统相比，具有许多明显的优势。chot可能非常便宜，它们有可能彻底改变NDE/T -而不是拆除结构（例如飞机发动机）使用昂贵的传统传感器进行测试，它将有可能将许多chot永久安装到结构中。然后这些可能被激活，并使用自由空间光学读取没有任何布线。它们可以用于运动部件（例如内部和运行中的发动机），也可以在恶劣环境中使用（例如在高温下不能使用压电材料）。chot对结构的影响也很小，并且可以很容易地以极低的成本安装和拆卸。虽然该提案将集中于开发用于无损检测/检测应用的chot，但还有许多其他应用，例如作为食品和生物样品的传感器

Describe the proposed research using (about 200) words geared to the non-specialist reader.This project will develop a range of novel cheap optical transducers (CHOTs) for the generation and detection of ultrasound. These CHOTs have the potential to be significantly cheaper (> 3 orders of magnitude) than existing piezoelectric based transducers and have many distinct advantages over existing transducer systems either contacting (piezoelectrics) or non contacting (laser ultrasound and EMATs).CHOTs may be so cheap that they have the potential to revolutionise NDE/T - instead of dismantling the structure (say an aircraft engine) for testing using an expensive traditional transducer it will be possible to install many CHOTs permanently into the structure. These may then be activated and read using free space optics without any wiring. They can be used on moving parts (for instance inside and engine during operation) and can be used in hostile environments (for instance at elevated temperatures where piezoelectrics cannot be used). CHOTs also have a very low impact on the structure and may be easily installed and removed at extremely low cost. While this proposal will concentrate on developing CHOTs for NDE/T applications there are many other applications, for instance as sensors for foodstuffs and biological samples